/*
 * Copyright (C) 2021 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
 * use this file except in compliance with the License. You may obtain a copy of
 * the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 */

package com.google.android.accessibility.utils.output;

import com.google.errorprone.annotations.CheckReturnValue;
import org.checkerframework.checker.nullness.qual.NonNull;
import org.checkerframework.checker.nullness.qual.Nullable;

/**
 * Provides actor-state data to event-interpreters. This default-implementation should be partially
 * overridden by accessibility-services.
 */
@CheckReturnValue
public class ActorStateProvider {

  /**
   * Returns whether the accessibility-service is automatically sending text-cursor to end, instead
   * of a real text-editing action.
   */
  public boolean resettingNodeCursor() {
    return false;
  }

  public @Nullable ScrollActionRecord scrollState() {
    return null;
  }

  public @NonNull SelectionStateReader selectionState() {
    return new SelectionStateReader() {};
  }

  public EditTextActionHistory.@NonNull Provider editHistory() {
    return new EditTextActionHistory().provider;
  }
}
